<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>使用@keyframes创建css动画</title> 
    <script src="vue.js"></script>
    
</head>
<body>
     <style>
        div.circular{
            width: 100px;height: 100px;background: red;
            border-radius: 50%;margin-top: 20px;text-align: center;
            line-height: 100px;color:#fff;
        }
        .bounce-enter-active{
            animation: Ami.5s;
        }
        .bounce-leave-active{
            animation: Ami.5s;
        }
        @keyframes Ami{
            0%{transform: scale(0);background: rgb(31, 94, 73);}
                20%{transform: scale(1);background: burlywood;}
                    50%{transform: scale(1.5);background: blueviolet;}
                        100%{transform: scale(1);background:burlywood;}
        }
    </style>
    <div id="app">
        <button @click="show=!show">
            使用@keyframes创建css动画
        </button>
        <transition name="bounce">
            <div class="circular" v-if="show">圆形</div>
            </transition>
    </div>
    <script>
        var vm =new Vue({
            el:'#app',data:{show:true}
        })
    </script>
  
</body>
</html>